ST16C1450CJ28 EXAR [Exar Corporation], ST16C1450CJ28 Datasheet - Page 13

• Manufacturer Part Number: ST16C1450CJ28
• Description: 2.97V TO 5.5V UART
• Manufacturer: EXAR [Exar Corporation]

áç
áç
áç
áç
REV. 4.2.0
The 145X has a set of configuration registers selected by address lines A0, A1 and A2. The 16C450
compatible registers can be accessed when LCR[7] = 0 and the baud rate generator divisor registers can be
accessed when LCR[7] = 1. The complete register set is shown on
3.0 UART INTERNAL REGISTERS
A2,A1,A0 A
0
0
0
0
0
1
1
1
1
0
0 0
0 1
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
DDRESSES
RHR - Receive Holding Register
THR - Transmit Holding Register
DLL - Div Latch Low Byte
DLM - Div Latch High Byte
IER - Interrupt Enable Register
ISR - Interrupt Status Register
Reserved
LCR - Line Control Register
MCR - Modem Control Register
LSR - Line Status Register
Reserved
MSR - Modem Status Register
Reserved
SPR - Scratch Pad Register
T
ABLE
2: ST16C145X UART INTERNAL REGISTERS
R
EGISTER
13
Table 2
R
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
EAD
/W
and
RITE
Table
3.
2.97V TO 5.5V UART
C
LCR[7] = 0
LCR[7] = 1
LCR[7] = 0
LCR[7] = 0
OMMENTS
ST16C1450/51